Looks very good for the end of December. You have a rex that can completely defoliate in winter. Continue watering as long as it has leaves but if it drops all its leaves cut back on watering but don't let it dry out completely either. You can remove the older leaves which often encourages the plant to produce new ones. If the older leaves have some green you may be able to use them for propagation as well (if they are yellowing they may be too old to effectively use for propagation).

Thanks for the info. The leaves tend to become more rounded after they mature rather than sharp on the edges and that was concerning me...Thx

Mature leaves can look totally different than juvenile leaves on rexes. You're doing good.